[yt-users] TIPSY to regular grid

Bruno Villasenor br1villasen at gmail.com
Fri Dec 11 20:45:51 PST 2015


Hi Matthew,

Here it goes:

---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
/home/bruno/Desktop/Dropbox/Developer/parallax/gas_images/volume_dm.py in
<module>()
     38                                       dims=ds.domain_dimensions *
2**level)
     39
---> 40 dmDens = data[('deposit','DarkMatter_density')]
     41
     42

/home/bruno/apps/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.pyc in
__getitem__(self, key)
    238                 return self.field_data[f]
    239             else:
--> 240                 self.get_data(f)
    241         # fi.units is the unit expression string. We depend on the
registry
    242         # hanging off the dataset to define this unit object.

/home/bruno/apps/yt-x86_64/src/yt-hg/yt/data_objects/construction_data_containers.pyc
in get_data(self, fields)
    507         fill, gen, part = self._split_fields(fields_to_get)
    508         if len(part) > 0: self._fill_particles(part)
--> 509         if len(fill) > 0: self._fill_fields(fill)
    510         if len(gen) > 0: self._generate_fields(gen)
    511

/home/bruno/apps/yt-x86_64/src/yt-hg/yt/data_objects/construction_data_containers.pyc
in _fill_fields(self, fields)
    539         domain_dims = self.ds.domain_dimensions.astype("int64") \
    540                     * self.ds.relative_refinement(0, self.level)
--> 541         for chunk in self._data_source.chunks(fields, "io"):
    542             input_fields = [chunk[field] for field in fields]
    543             # NOTE: This usage of "refine_by" is actually *okay*,
because it's

/home/bruno/apps/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.pyc in
chunks(self, fields, chunking_style, **kwargs)
    564         for chunk in self.index._chunk(self, chunking_style,
**kwargs):
    565             with self._chunked_read(chunk):
--> 566                 self.get_data(fields)
    567                 # NOTE: we yield before releasing the context
    568                 yield self

/home/bruno/apps/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.pyc in
get_data(self, fields)
    670
    671         fields_to_generate += gen_fluids + gen_particles
--> 672         self._generate_fields(fields_to_generate)
    673         for field in self.field_data.keys():
    674             if field not in ofields:

/home/bruno/apps/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.pyc in
_generate_fields(self, fields_to_generate)
    690                 fi = self.ds._get_field_info(*field)
    691                 try:
--> 692                     fd = self._generate_field(field)
    693                     if type(fd) == np.ndarray:
    694                         fd = self.ds.arr(fd, fi.units)

/home/bruno/apps/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.pyc in
_generate_field(self, field)
    275                 tr = self._generate_particle_field(field)
    276             else:
--> 277                 tr = self._generate_fluid_field(field)
    278             if tr is None:
    279                 raise YTCouldNotGenerateField(field, self.ds)

/home/bruno/apps/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.pyc in
_generate_fluid_field(self, field)
    293             finfo.check_available(gen_obj)
    294         except NeedsGridType as ngt_exception:
--> 295             rv = self._generate_spatial_fluid(field,
ngt_exception.ghost_zones)
    296         else:
    297             rv = finfo(gen_obj)

/home/bruno/apps/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.pyc in
_generate_spatial_fluid(self, field, ngz)
    309                     o = self._current_chunk.objs[0]
    310                     with o._activate_cache():
--> 311                         ind += o.select(self.selector, self[field],
rv, ind)
    312         else:
    313             chunks = self.index._chunk(self, "spatial", ngz = ngz)

/home/bruno/apps/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.pyc in
__getitem__(self, key)
    238                 return self.field_data[f]
    239             else:
--> 240                 self.get_data(f)
    241         # fi.units is the unit expression string. We depend on the
registry
    242         # hanging off the dataset to define this unit object.

/home/bruno/apps/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.pyc in
get_data(self, fields)
    670
    671         fields_to_generate += gen_fluids + gen_particles
--> 672         self._generate_fields(fields_to_generate)
    673         for field in self.field_data.keys():
    674             if field not in ofields:

/home/bruno/apps/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.pyc in
_generate_fields(self, fields_to_generate)
    690                 fi = self.ds._get_field_info(*field)
    691                 try:
--> 692                     fd = self._generate_field(field)
    693                     if type(fd) == np.ndarray:
    694                         fd = self.ds.arr(fd, fi.units)

/home/bruno/apps/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.pyc in
_generate_field(self, field)
    275                 tr = self._generate_particle_field(field)
    276             else:
--> 277                 tr = self._generate_fluid_field(field)
    278             if tr is None:
    279                 raise YTCouldNotGenerateField(field, self.ds)

/home/bruno/apps/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.pyc in
_generate_fluid_field(self, field)
    295             rv = self._generate_spatial_fluid(field,
ngt_exception.ghost_zones)
    296         else:
--> 297             rv = finfo(gen_obj)
    298         return rv
    299

/home/bruno/apps/yt-x86_64/src/yt-hg/yt/fields/derived_field.pyc in
__call__(self, data)
    182                 "for %s" % (self.name,))
    183         with self.unit_registry(data):
--> 184             dd = self._function(self, data)
    185         for field_name in data.keys():
    186             if field_name not in original_fields:

/home/bruno/apps/yt-x86_64/src/yt-hg/yt/fields/particle_fields.pyc in
particle_density(field, data)
    104         d = data.deposit(pos, [data[ptype, mass_name]], method =
"sum")
    105         d = data.ds.arr(d, "code_mass")
--> 106         d /= data["index", "cell_volume"]
    107         return d
    108

/home/bruno/apps/yt-x86_64/src/yt-hg/yt/units/yt_array.pyc in
__idiv__(self, other)
    747         """ See __div__. """
    748         oth = sanitize_units_mul(self, other)
--> 749         np.divide(self, oth, out=self)
    750         return self
    751

ValueError: operands could not be broadcast together with shapes (2,2,2,8)
(2,2,2,0) (2,2,2,8)

2015-12-11 22:27 GMT-06:00 Matthew Turk <matthewturk at gmail.com>:

> Hi Bruno,
>
> That's an odd one -- can you supply the rest of the traceback?
>
> On Fri, Dec 11, 2015 at 10:16 PM, Bruno Villasenor
> <br1villasen at gmail.com> wrote:
> > Hello yt-users,
> >
> > I'm trying to get data from a TIPSY file to a fixed resolution array,
> > The simplest version of my code is below:
> >
> > #####################################################
> > ds = yt.load( dataDir + dataFile,
> >  parameter_file= dataDir + paramFile )
> >
> > ad = ds.all_data()
> > left = ad.left_edge
> >
> > level = 1
> > data = ds.covering_grid(level=level, left_edge=left,
> >                                       dims=ds.domain_dimensions *
> 2**level)
> >
> > dmDens = data[('deposit','DarkMatter_density')]
> > ####################################################
> >
> > I'm getting this error:
> > ValueError: operands could not be broadcast together with shapes
> (2,2,2,8)
> > (2,2,2,0) (2,2,2,8)
> >
> > Any ideas?
> >
> > YT_version: 3.1-dev
> >
> > Thanks in advance.
> > Bruno
> >
> >
> >
> >
> > _______________________________________________
> > yt-users mailing list
> > yt-users at lists.spacepope.org
> > http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
> >
> _______________________________________________
> yt-users mailing list
> yt-users at lists.spacepope.org
> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.spacepope.org/pipermail/yt-users-spacepope.org/attachments/20151211/eb027f29/attachment.htm>


More information about the yt-users mailing list